/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; cursor: pointer; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* ---------- Tokens ---------- */
:root {
  --ink-900: #101433;
  --brand-indigo: #283593;
  --paper: #F3EFE4;
  --paper-dark: #E8E2D2;
  --text-on-paper: #201d33;
  --text-muted-on-paper: #5b5770;
  --text-muted-on-ink: #a9a6c0;
  --text-soft-on-ink: #cfcfe6;
  --white: #FDFCF9;
  --risk-red: #B0271F;
  --risk-red-soft: #F6DCDA;
  --clean-green: #1F7A4D;
  --clean-green-soft: #DCEEE3;
  --clean-green-deep: #186139;
  --seal-gold: #A9812F;
  --seal-gold-on-paper: #6E521C;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --radius-card: 14px;
  --shadow-card: 0 24px 60px -32px rgba(16, 20, 51, 0.45);
  --max-width: 1120px;
}

body {
  font-family: var(--font-body);
  color: var(--white);
  background: var(--ink-900);
  line-height: 1.5;
}

.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0;
}

.band { padding-block: 5rem; scroll-margin-top: 5rem; }
.band--ink { background: var(--ink-900); color: var(--white); }
.band--paper { background: var(--paper); color: var(--text-on-paper); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--seal-gold);
  margin-bottom: 1rem;
}
.band--paper .eyebrow { color: var(--seal-gold-on-paper); }

.btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:focus-visible {
  outline: 3px solid var(--seal-gold);
  outline-offset: 2px;
}
.btn--primary {
  background: var(--clean-green);
  color: var(--white);
}
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 12px 24px -12px rgba(31, 122, 77, 0.6); }
.btn--ghost {
  background: transparent;
  border-color: currentColor;
  color: inherit;
}
.btn--small { padding: 0.5rem 1.125rem; font-size: 0.875rem; }
.btn:disabled { opacity: 0.75; cursor: not-allowed; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(16, 20, 51, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}
.topbar__brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--white);
}

.footer {
  background: var(--ink-900);
  color: var(--text-muted-on-ink);
  padding-block: 2rem;
  font-size: 0.875rem;
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
}
.footer a { text-decoration: underline; }

@media (max-width: 640px) {
  .band { padding-block: 3.5rem; }
}

/* ---------- Hero ---------- */
.hero { padding-block: 4rem 5rem; }
.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}
.hero__headline {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  margin-bottom: 1.25rem;
}
.hero__sub {
  font-size: 1.125rem;
  color: var(--text-soft-on-ink);
  max-width: 46ch;
  margin-bottom: 2rem;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; }

.hero__visual { display: flex; justify-content: center; }

.doc-card {
  position: relative;
  width: min(420px, 100%);
  background: var(--paper);
  color: var(--text-on-paper);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 2.25rem 2rem;
  overflow: hidden;
}
.doc-card__scanline {
  position: absolute;
  left: 0;
  right: 0;
  height: 3px;
  top: 0;
  background: linear-gradient(90deg, transparent, var(--seal-gold), transparent);
  box-shadow: 0 0 18px 3px rgba(169, 129, 47, 0.55);
  animation: doc-scan 6s linear infinite;
}
.doc-card__line {
  height: 10px;
  border-radius: 6px;
  background: var(--paper-dark);
  margin-block: 16px;
}
.doc-card__line--hidden {
  position: relative;
  margin-top: 34px;
  animation: doc-reveal 6s ease-in-out infinite;
}
.doc-card__flag {
  position: absolute;
  right: 0;
  top: -22px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--risk-red);
  opacity: 0;
  animation: doc-flag 6s ease-in-out infinite;
}
.doc-card__stamp {
  position: absolute;
  right: 1.75rem;
  bottom: 1.5rem;
  width: 78px;
  height: 78px;
  border-radius: 50%;
  border: 3px solid var(--risk-red);
  color: var(--risk-red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  transform: rotate(-12deg) scale(0);
  opacity: 0;
  animation: doc-stamp 6s ease-in-out infinite;
}

@keyframes doc-scan {
  0% { top: 0%; }
  70% { top: 100%; }
  100% { top: 100%; }
}
@keyframes doc-reveal {
  0%, 55% { background: var(--paper-dark); outline: none; }
  60%, 88% { background: var(--risk-red-soft); outline: 2px solid var(--risk-red); }
  95%, 100% { background: var(--paper-dark); outline: none; }
}
@keyframes doc-flag {
  0%, 55% { opacity: 0; transform: translateY(4px); }
  62%, 88% { opacity: 1; transform: translateY(0); }
  95%, 100% { opacity: 0; }
}
@keyframes doc-stamp {
  0%, 58% { opacity: 0; transform: rotate(-12deg) scale(0); }
  64% { opacity: 1; transform: rotate(-12deg) scale(1.15); }
  70%, 88% { opacity: 1; transform: rotate(-12deg) scale(1); }
  95%, 100% { opacity: 0; transform: rotate(-12deg) scale(0); }
}

@media (prefers-reduced-motion: reduce) {
  .doc-card__scanline { animation: none; opacity: 0; }
  .doc-card__line--hidden { animation: none; background: var(--risk-red-soft); outline: 2px solid var(--risk-red); }
  .doc-card__flag { animation: none; opacity: 1; }
  .doc-card__stamp { animation: none; opacity: 1; transform: rotate(-12deg) scale(1); }
}

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { order: -1; }
}

/* ---------- Demo ---------- */
.demo__heading { font-size: clamp(1.75rem, 3.5vw, 2.5rem); margin-bottom: 1rem; max-width: 24ch; }
.demo__sub { max-width: 56ch; color: var(--text-muted-on-paper); font-size: 1.0625rem; margin-bottom: 2.5rem; }

.result-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.result-card {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  border-top: 4px solid;
}
.result-card h3 { font-size: 1.25rem; margin-block: 0.75rem 0.5rem; }
.result-card p { margin: 0; color: var(--text-muted-on-paper); }
.result-card__stamp {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
}
.result-card--clean { border-top-color: var(--clean-green); }
.result-card--clean .result-card__stamp { background: var(--clean-green-soft); color: var(--clean-green-deep); }
.result-card--risk { border-top-color: var(--risk-red); }
.result-card--risk .result-card__stamp { background: var(--risk-red-soft); color: var(--risk-red); }

@media (max-width: 640px) {
  .result-cards { grid-template-columns: 1fr; }
}

/* ---------- Caso ---------- */
.caso__grid {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 3rem;
  align-items: start;
}
.caso__heading { font-size: clamp(1.5rem, 3vw, 2.125rem); margin-bottom: 1.25rem; }
.caso__body { color: var(--text-soft-on-ink); font-size: 1.0625rem; max-width: 62ch; margin-bottom: 1rem; }
.caso__source { font-size: 0.875rem; color: var(--text-muted-on-ink); }
.caso__source a { color: var(--seal-gold); }

.caso__stat {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-card);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.caso__stat-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--risk-red-soft);
}
.caso__stat-label { font-size: 0.9375rem; color: var(--text-soft-on-ink); }

@media (max-width: 900px) {
  .caso__grid { grid-template-columns: 1fr; }
}

/* ---------- Como funciona ---------- */
.como-funciona__heading { font-size: clamp(1.75rem, 3.5vw, 2.5rem); margin-bottom: 2.5rem; max-width: 24ch; }
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--brand-indigo);
  color: var(--brand-indigo);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 1rem;
}
.step h3 { font-size: 1.125rem; margin-bottom: 0.5rem; }
.step p { margin: 0; color: var(--text-muted-on-paper); }

@media (max-width: 720px) {
  .steps { grid-template-columns: 1fr; gap: 2.5rem; }
}

/* ---------- Confiança ---------- */
.confianca__heading { font-size: clamp(1.75rem, 3.5vw, 2.5rem); max-width: 22ch; margin-bottom: 0.75rem; }
.confianca__sub { color: var(--text-soft-on-ink); font-size: 1.0625rem; margin-bottom: 2.5rem; }

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.compare__col {
  border-radius: var(--radius-card);
  padding: 2rem;
}
.compare__col h3 { font-size: 1.125rem; margin-bottom: 1rem; }
.compare__col ul { margin: 0; padding-left: 1.25rem; display: flex; flex-direction: column; gap: 0.625rem; }
.compare__col--them {
  background: rgba(176, 39, 31, 0.12);
  border: 1px solid rgba(176, 39, 31, 0.3);
  color: #f0c9c6;
}
.compare__col--us {
  background: rgba(31, 122, 77, 0.14);
  border: 1px solid rgba(31, 122, 77, 0.35);
  color: #cdeedb;
}

@media (max-width: 640px) {
  .compare { grid-template-columns: 1fr; }
}

/* ---------- Preços ---------- */
.precos__heading { font-size: clamp(1.75rem, 3.5vw, 2.5rem); margin-bottom: 2.5rem; max-width: 22ch; }

.price-card {
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 2.5rem;
  max-width: 420px;
}
.price-toggle {
  display: inline-flex;
  background: var(--paper-dark);
  border-radius: 999px;
  padding: 0.25rem;
  margin-bottom: 1.5rem;
}
.price-toggle__btn {
  border: none;
  background: transparent;
  padding: 0.5rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-muted-on-paper);
}
.price-toggle__btn.is-active { background: var(--ink-900); color: var(--white); }
.price-toggle__btn:focus-visible { outline: 2px solid var(--brand-indigo); outline-offset: 2px; }

.price-card__value {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 600;
  margin: 0;
}
.price-card__note { color: var(--text-muted-on-paper); margin: 0.25rem 0 1.5rem; }
.price-card__features {
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  color: var(--text-on-paper);
}
.price-card__features li::before { content: '✓ '; color: var(--clean-green); font-weight: 700; }

/* ---------- FAQ ---------- */
/* #precos e #faq são as duas únicas seções --paper consecutivas (ver
   "Ritmo estrutural" no topo do plano) — a borda evita que leiam como uma
   seção só. */
.faq { border-top: 1px solid var(--paper-dark); }
.faq__heading { font-size: clamp(1.75rem, 3.5vw, 2.5rem); margin-bottom: 2rem; max-width: 22ch; }
.faq-list { display: flex; flex-direction: column; gap: 0.75rem; max-width: 720px; }
.faq-item {
  background: var(--white);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
}
.faq-item summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  float: right;
  font-family: var(--font-mono);
  color: var(--brand-indigo);
}
.faq-item[open] summary::after { content: '−'; }
.faq-item p { margin: 0.875rem 0 0; color: var(--text-muted-on-paper); }
.faq-item summary:focus-visible { outline: 2px solid var(--brand-indigo); outline-offset: 4px; }

/* ---------- CTA final ---------- */
.cta-final__inner { text-align: center; max-width: 560px; margin-inline: auto; }
.cta-final__heading { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: 0.75rem; }
.cta-final__sub { color: var(--text-soft-on-ink); margin-bottom: 2rem; }

.trial-form__label { display: block; text-align: left; font-size: 0.875rem; margin-bottom: 0.5rem; color: var(--text-soft-on-ink); }
.trial-form__row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.trial-form__row input {
  flex: 1 1 240px;
  padding: 0.875rem 1.125rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.40);
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
  font-size: 1rem;
}
.trial-form__row input::placeholder { color: var(--text-muted-on-ink); }
.trial-form__row input:focus-visible { outline: 2px solid var(--seal-gold); outline-offset: 2px; }
.trial-form__row .btn { flex: 0 0 auto; }

.trial-result {
  margin-top: 1.5rem;
  padding: 1.5rem;
  border-radius: var(--radius-card);
  text-align: left;
}
.trial-result:focus { outline: 2px solid var(--seal-gold); outline-offset: 4px; }
.trial-result--success { background: var(--clean-green-soft); color: var(--text-on-paper); }
.trial-result--error { background: var(--risk-red-soft); color: var(--text-on-paper); }
.trial-result__title { margin: 0 0 0.25rem; font-weight: 600; }
.trial-result__key { font-family: var(--font-mono); margin: 0 0 1rem; word-break: break-all; }
.trial-result__note { margin: 0; color: var(--text-muted-on-paper); }

@media (max-width: 480px) {
  .trial-form__row { flex-direction: column; }
  .trial-form__row .btn { width: 100%; }
}